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Session Report

Summary:
Test run at: 2017-09-14 14:09:31 GMT
Client Prefix (v4): 116.235.204.x/24
Client AS (v4): 4812 (CHINANET-SH-AP)
IPv4 Probes: 116
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.
IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (116.235.204.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
116.235.204.x/24/314812natblock
116.235.204.x/24/304812natblock
116.235.204.x/24/294812natblock
116.235.204.x/24/284812natblock
116.235.204.x/24/274812natblock
116.235.204.x/24/264812natblock
116.235.204.x/24/254812natblock
116.235.204.x/24/244812natblock
116.235.205.x/24/234812natblock
116.235.206.x/24/224812natblock
116.235.200.x/24/214812natblock
116.235.196.x/24/204812natblock
116.235.220.x/24/194812natblock
116.235.236.x/24/184812natblock
116.235.140.x/24/174812natblock
116.235.76.x/24/164812natblock
116.234.204.x/24/154812natblock
116.233.204.x/24/144812natblock
116.239.204.x/24/134812natblock
116.227.204.x/24/124812natblock
116.251.204.x/24/119729natblock
116.203.204.x/24/10131222natblock
116.171.204.x/24/9UNROUTEDnatblock
116.107.204.x/24/824086natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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